Kingdom Animalia Linnaeus, 1758 - animals Phylum Sipuncula Rafinesque, 1814 - peanut worms see Class Sipuncula Class Sipunculida DeBlainville, 1828 see Subclass Sipunculida Order Golfingiaformes Family Phascolionidae E. Cutler & Gibbs, 1985 Genus Onchnesoma Koren & Danielssen, 1875 Genus Phascolion Théel, 1875